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Golf club head

a golf club and head technology, applied in the field of golf club head, can solve the problems of complicated design of enhanced head head, and achieve the effect of excellent hitting sound

Active Publication Date: 2013-05-02
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about improving the hitting sound of a golf club head that has a CFRP member. The CFRP has a higher damping ratio than metal, which causes the hitting sound to be shorter and have a lower primary peak frequency. This results in a poor impression for golf players and can affect their mood and swing. The aim of this invention is to provide a golf club head with a CFRP member that has an excellent hitting sound.

Problems solved by technology

The regulation and the restriction complicate the design of a head having enhanced performance.

Method used

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examples

[0138]Hereinafter, the effects of the present invention will be clarified by examples. However, the present invention should not be interpreted in a limited way based on the description of the examples.

[Preparation of Simulation Head Data]

[0139]The three-dimensional data of a head shown in FIGS. 1 and 2 was prepared. The volume of the head was set to 449 cc, and the weight of the head was set to 178 g. The head was mesh-divided into a finite element using a commercially available preprocessor (HyperMesh or the like) to obtain a calculation model. FIG. 6 is a plan view of the mesh-divided head. FIG. 7 is a bottom view of the mesh-divided head. A portion painted in black in a crown of FIG. 6 shows a CFRP member. FIG. 8 is a plan view of the mesh-divided head as in FIG. 6. Unlike FIG. 6, in FIG. 8, the CFRP member is not painted in black. In FIG. 8, the position of the crown opening cp1 is shown by a thick line. The inner side of the crown opening cp1 is the CFRP single part.

[0140]The ...

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Abstract

A golf club head 2 is provided with a head body h1 and a CFRP member 16. The CFRP member 16 constitutes at least a part of a crown 6 or at least a part of a sole 8. The CFRP member 16 has a UD lamination part 18 having laminated UD layers. Orientation of a fiber is substantially set to three directions in the UD lamination part 18. When the three directions are a first direction, a second direction, and a third direction, preferably, an angle of the second direction to the first direction is substantially +60 degrees, and an angle of the third direction to the first direction is substantially −60 degrees. Preferably, the UD lamination part 18 has a lamination symmetrical property in a fiber orientation angle. Preferably, the number of layers of the UD lamination part 18 is 5 or greater and 12 or less.

Description

[0001]The present application claims priority on Patent Application No. 2011-236582 filed in JAPAN on Oct. 28, 2011, the entire contents of which are hereby incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a golf club head. In particular, the present invention relates to a golf club head having a CFRP member.[0004]2. Description of the Related Art[0005]In a golf club head, a coefficient of restitution and a volume of the head are regulated by the rule. In respect of a swing balance, a weight of the head is restricted. Furthermore, in respect of practicality, high strength is required. The regulation and the restriction complicate the design of a head having enhanced performance.[0006]In order to improve the performance of the head, a head using CFRP is known. The CFRP means carbon fiber reinforced plastic. The CFRP can have specific strength higher than that of titanium. An excess weight can be created by usin...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A63B53/04A63B102/32
CPCA63B2059/0003A63B2071/0633A63B2209/023A63B2053/0433A63B2053/0408A63B53/04A63B53/0466A63B2225/01A63B2053/0437A63B60/02A63B53/0408A63B53/0433A63B53/0437A63B60/002A63B60/00
Inventor HAYASE, SEIJIONUKI, MASAHIDEYAMAMOTO, AKIO
Owner SUMITOMO RUBBER IND LTD
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